1 files changed, 5 insertions, 7 deletions
diff --git a/Source/JavaScriptCore/heap/WeakBlock.h b/Source/JavaScriptCore/heap/WeakBlock.h
index 6461f7b2f..fd28101fd 100644
--- a/Source/JavaScriptCore/heap/WeakBlock.h
+++ b/Source/JavaScriptCore/heap/WeakBlock.h
@@ -34,14 +34,15 @@
 
 namespace JSC {
 
+class DeadBlock;
 class HeapRootVisitor;
 class JSValue;
 class WeakHandleOwner;
 
-class WeakBlock : public DoublyLinkedListNode<WeakBlock> {
+class WeakBlock : public HeapBlock<WeakBlock> {
 public:
     friend class WTF::DoublyLinkedListNode<WeakBlock>;
-    static const size_t blockSize = 3 * KB; // 5% of MarkedBlock size
+    static const size_t blockSize = 4 * KB; // 5% of MarkedBlock size
 
     struct FreeCell {
         FreeCell* next;
@@ -55,8 +56,7 @@ public:
         FreeCell* freeList;
     };
 
-    static WeakBlock* create();
-    static void destroy(WeakBlock*);
+    static WeakBlock* create(DeadBlock*);
 
     static WeakImpl* asWeakImpl(FreeCell*);
 
@@ -73,15 +73,13 @@ public:
 private:
     static FreeCell* asFreeCell(WeakImpl*);
 
-    WeakBlock();
+    WeakBlock(Region*);
     WeakImpl* firstWeakImpl();
     void finalize(WeakImpl*);
     WeakImpl* weakImpls();
     size_t weakImplCount();
     void addToFreeList(FreeCell**, WeakImpl*);
 
-    WeakBlock* m_prev;
-    WeakBlock* m_next;
     SweepResult m_sweepResult;
 };